Paul did you do two bottles at once? or one tank after another... congrats on passing!!
Oh joy, P0401 is back... (and how 80's fail emissions)
- Thread starter nakman
- Start date
pmccumber
Hard Core 4+
One tank after another. I went back and looked at the history of the vehicle and it had been steadily deteriorating. Maybe I'm just naive but I think a complete tuneup and this Lucas stuff really did make a difference.
just noticed that the limits on my sheet are tighter than those on Paul's sheet. Interesting
Bikeman
Hard Core 4+
Good show. I have mine this month as soon as the notice comes. Running premium right now with 2 bottles of heet.
Bikeman
Hard Core 4+
Just went and passed. Good thing I brought the new gas cap with me, since it first failed with the existing one which I'm sure was fine
. I think it barely passed from the #'s. My scanner is packed up.
HC 0.4103, limit=1.20
CO 4.7691, limit=15
CO2 749.6208
NOX 2.2276, limit=3.0
Looks like much higher than everyone else's figures. At least I don't have to do anything drastic for 2 years like cats an such. They are the originals.
I ran a full tank of premium with 2 bottles of Heet per Ige.
For reference, I swapped on the 285's from Blacky. Fun on the highway with 5.29's.
. I think it barely passed from the #'s. My scanner is packed up.HC 0.4103, limit=1.20
CO 4.7691, limit=15
CO2 749.6208
NOX 2.2276, limit=3.0
Looks like much higher than everyone else's figures. At least I don't have to do anything drastic for 2 years like cats an such. They are the originals.
I ran a full tank of premium with 2 bottles of Heet per Ige
.For reference, I swapped on the 285's from Blacky. Fun on the highway with 5.29's
.
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Dad's '96 turbo 80 failed emissions for the 1st time since he's owned it, due to his cat being wiped out. Turns out it has only had 1 cat on it all this time as well, which they also caught for the first time this time and failed the visual. He took it to Bud's a couple days ago and got it back yesterday to have two new cats added to his 3" mandrel bent exhaust in place of the 1 bad cat. His check engine light is also on with the EGR code (not sure what the code is), which apparently cooks cats, so he'll have to get his EGR system figured out pretty soon too.
EDIT: it passed emissions today too, so all is well for now
EDIT: it passed emissions today too, so all is well for now
pmccumber
Hard Core 4+
Yours is two years newer; I know, makes no sense since what they are measuring is exactly the same.
Nemo
Trail Ready
My Turn.
I Failed as well. I guess I will join the club in the posting.
My readings were.
HC - 0.4975 with limits of 1.2000 PASS
CO - 26.9328 with limits of 15.0000 FAIL
CO2 - 695.3877
NOx - 0.2434 with limits of 3.0000
Gas Cap PASS
I went ahead and have ordered New O2 Sensors, Spark Plugs (wires were replaced earlier 2010 with plugs but Alaska trip happened), Air Filter (could be part of the issue), rotor.
I will be putting in some gas treatment (heet) prior to going back as well.
Thanks to Kevin for loaning me the Emission tires.
Get my parts on Monday and will be passing on Tuesday I hope.
I Failed as well. I guess I will join the club in the posting.
My readings were.
HC - 0.4975 with limits of 1.2000 PASS
CO - 26.9328 with limits of 15.0000 FAIL
CO2 - 695.3877
NOx - 0.2434 with limits of 3.0000
Gas Cap PASS
I went ahead and have ordered New O2 Sensors, Spark Plugs (wires were replaced earlier 2010 with plugs but Alaska trip happened), Air Filter (could be part of the issue), rotor.
I will be putting in some gas treatment (heet) prior to going back as well.
Thanks to Kevin for loaning me the Emission tires.
Get my parts on Monday and will be passing on Tuesday I hope.
SteveH
Hard Core 4+
You can always put in E-85 instead of Heet. My brother put a ton of it in his 1994 '80 (in Arvada) to get it to pass - like several gallons in a tank that only had a 5-7 gallons of gas in it. After the test, he filled it with regular gas and burned it quickly. He had high CO, I think.
He also now keeps a brand new, spare gas cap on hand only for e-tests, since his truck seems to repeatedly fail their 'gas cap' check.
He also now keeps a brand new, spare gas cap on hand only for e-tests, since his truck seems to repeatedly fail their 'gas cap' check.
Nemo
Trail Ready
Hip Hip Hooray
Just passed the emissions today with Flying Colors. Even better than when I had the truck new from California.
Replaced O2 Sensors, Spark Plugs, Air Filter, and Rotor.
My good readings....
HC - 0.2567
CO - 4.0977
NOx - 1.1060
Anyone care to guess which one probably had the most impact. I for one think I could have got by with an Air Filter and putting Air in the tires I didn't think to do that when I borrowed Kevin's tires. They were at 15psi give or take
So now I should be good until the CATS fall off.....
Kevin, If you see this as I will PM you as well I am good to go and will take the tires off once the snow stops coming down.
BTW. Michelins are much slicker in ICE than my KM2's. So my take is KM2's are better than the stock tires by far.
Just passed the emissions today with Flying Colors. Even better than when I had the truck new from California.
Replaced O2 Sensors, Spark Plugs, Air Filter, and Rotor.
My good readings....
HC - 0.2567
CO - 4.0977
NOx - 1.1060
Anyone care to guess which one probably had the most impact. I for one think I could have got by with an Air Filter and putting Air in the tires
I didn't think to do that when I borrowed Kevin's tires. They were at 15psi give or take So now I should be good until the CATS fall off.....
Kevin, If you see this as I will PM you as well I am good to go and will take the tires off once the snow stops coming down.
BTW. Michelins are much slicker in ICE than my KM2's. So my take is KM2's are better than the stock tires by far.
Just passed the emissions today with Flying Colors. Even better than when I had the truck new from California.
Replaced O2 Sensors, Spark Plugs, Air Filter, and Rotor.
My good readings....
HC - 0.2567
CO - 4.0977
NOx - 1.1060
Anyone care to guess which one probably had the most impact. I for one think I could have got by with an Air Filter and putting Air in the tires
So now I should be good until the CATS fall off.....
Kevin, If you see this as I will PM you as well I am good to go and will take the tires off once the snow stops coming down.
BTW. Michelins are much slicker in ICE than my KM2's. So my take is KM2's are better than the stock tires by far.
Congrats on the pass!
thelal
0
Tim
On my older (96) truck my freq. P401's where nearly always exhaust hole related. What was strange that certain places driving triggered it (Berthoud) due to bump in road etc..
Plugging the holes fixed it 4 awhile (too cheap to replace..)
Brendan
On my older (96) truck my freq. P401's where nearly always exhaust hole related. What was strange that certain places driving triggered it (Berthoud) due to bump in road etc..
Plugging the holes fixed it 4 awhile (too cheap to replace..)
Brendan
leiniesred
Hard Core 4+
some more e-test data for the thread.
1989 V6 4runner. 280,000 miles. original catalytic converter. Original o2 sensor. Still passes smog test.
smog test results for 2009 and 20011
2009 smog test: 2010 smog test: Limits:
Hydrocarbons: .4478 .4237 3
Carbon Monoxide: 7.2549 6.8810 25
NOx: .7638 .5586 5
1989 V6 4runner. 280,000 miles. original catalytic converter. Original o2 sensor. Still passes smog test.
smog test results for 2009 and 20011
2009 smog test: 2010 smog test: Limits:
Hydrocarbons: .4478 .4237 3
Carbon Monoxide: 7.2549 6.8810 25
NOx: .7638 .5586 5
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thelal
0
Passed emission on 3rd go
I just passed my emissions on the 3rd go - 1997 80 with 230K in Boulder Co.. Running 265s, roof-rack, winch, front/rear bumpers, sliders.
Heres the pass results and comparisons for each try and last time passed (2yrs ago when truck purchased and new O2 sensors + 'special' "get-it-to-pass-stuff")
Pass, Fail, Fail, Pass, LIMIT
3rd, 2nd, 1st, 2 yrs,
HC .31, .28, .46, .19, 1.2
CO 6.56, 8.4, 13.7, 2.94, 15
CO2 831, 845, 803, 789, n/a
NoX 2.46, 3.17, 3.48, 2.3 , 3.0
To pass I dropped the timing to -3-0 (was 9-12) degrees, ran 3 gal E85 (had approx 5 gal of prem. gas '91 in there), ran some SeaFoam day before (1/3 thru PCV and rest in tank; some smoke but not that much), ran Lucas Fuel Cleaner some days before. Also ran car for an hr beforehand and was cool/wet driving. Had patched a small hole in Y section of downpipe.
On 1st Fail I had just regular gas, had run some fuel injector cleaner thru and did a good run (1hr) beforehand.
On 2nd Fail I had 3g prem. gas, dropped timing to 0-3 degrees, good run beforehand (1hr).
Rotor/distributor recently new, due an oil change, air filter not new but air-pressured clean, sparks recently new.
Happy not to have to go check/purchase new cats or spend more $
Hope that helps someone.
Brendan
in Longmont
I just passed my emissions on the 3rd go - 1997 80 with 230K in Boulder Co.. Running 265s, roof-rack, winch, front/rear bumpers, sliders.
Heres the pass results and comparisons for each try and last time passed (2yrs ago when truck purchased and new O2 sensors + 'special' "get-it-to-pass-stuff")
Pass, Fail, Fail, Pass, LIMIT
3rd, 2nd, 1st, 2 yrs,
HC .31, .28, .46, .19, 1.2
CO 6.56, 8.4, 13.7, 2.94, 15
CO2 831, 845, 803, 789, n/a
NoX 2.46, 3.17, 3.48, 2.3 , 3.0
To pass I dropped the timing to -3-0 (was 9-12) degrees, ran 3 gal E85 (had approx 5 gal of prem. gas '91 in there), ran some SeaFoam day before (1/3 thru PCV and rest in tank; some smoke but not that much), ran Lucas Fuel Cleaner some days before. Also ran car for an hr beforehand and was cool/wet driving. Had patched a small hole in Y section of downpipe.
On 1st Fail I had just regular gas, had run some fuel injector cleaner thru and did a good run (1hr) beforehand.
On 2nd Fail I had 3g prem. gas, dropped timing to 0-3 degrees, good run beforehand (1hr).
Rotor/distributor recently new, due an oil change, air filter not new but air-pressured clean, sparks recently new.
Happy
not to have to go check/purchase new cats or spend more $Hope that helps someone.
Brendan
in Longmont
LARGEONE
Rising Sun Member
As many of you know...I'm not on the forum often any more. The little guy has taken over my life!!! (in a great way!)
I was cleaning up in the garage today and I found two O2 sensors from my '95 LC. When I changed them out, my cruiser did not have the check engine light on so I'm fairly certain these are still good. I passed emissions no problem with these sensor in about a year ago. I thought (mistakenly) that I might get better gas mileage if I put brand new ones in and I didn't know how old these were since I bought the truck used a year or so earlier.
Anyway, I thought these could be used for someone trying to diagnose their check engine issues. Maybe these could be used like other parts in the club that are free for people to borrow and pass along to others as people need to see whether their O2 sensor are the issue. So, if you need to try another set of O2 sensors to diagnose a code issue, PM me and you are welcome to them. You may have to re-use one of your gaskets as I think I only have one gasket for the pair of them. In addition, the nuts are mostly toast as I had to grind the sides of them to get a wrench to hold on them. These are Toyota O2s. Rather than spend $300 to see if the O2s are your issue, just bolt these bad boys on and try it out.
Paul
I was cleaning up in the garage today and I found two O2 sensors from my '95 LC. When I changed them out, my cruiser did not have the check engine light on so I'm fairly certain these are still good. I passed emissions no problem with these sensor in about a year ago. I thought (mistakenly) that I might get better gas mileage if I put brand new ones in and I didn't know how old these were since I bought the truck used a year or so earlier.
Anyway, I thought these could be used for someone trying to diagnose their check engine issues. Maybe these could be used like other parts in the club that are free for people to borrow and pass along to others as people need to see whether their O2 sensor are the issue. So, if you need to try another set of O2 sensors to diagnose a code issue, PM me and you are welcome to them. You may have to re-use one of your gaskets as I think I only have one gasket for the pair of them. In addition, the nuts are mostly toast as I had to grind the sides of them to get a wrench to hold on them. These are Toyota O2s. Rather than spend $300 to see if the O2s are your issue, just bolt these bad boys on and try it out.
Paul